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C Carson

Publications and source records attributed to C Carson.

7 recordsLinked to original sources

Digital respirosonography. New images of lung sounds.

We used tape recordings from normal subjects and from patients with lung disease to generate spectrographic images of respiratory sounds on a personal computer. These digital respirosonograms presented timing and frequency content of lung sounds, with the sound intensities displayed on a color scale. Respiratory sounds during inspiration and expiration could be recognized by their association with concurrent respiration curves. Contributions of low-frequency cardiac sounds were visually identified by their relationship to simultaneously recorded ECGs. Typical characteristics of normal and adventitious lung sounds were documented and displayed both in the time and the frequency domain. Digital respirosonography provides an easy way to assess lung sound amplitudes, frequencies and timing over several breaths.

Adolescent

Mental illness: support for relatives.

A questionnaire-based evaluation of a support group for relatives of people with mental illness living in the community is described. Set up initially in 1987, the evaluation suggests that the group has succeeded in offering emotional support to most members, although others have ceased to attend. The authors recommend that regular support of carers should become an integrated part of community mental health services.

Anger